Synthesis of CO2-based polycarbonate-g-polystyrene copolymers via NMRP.,Chemical Communications

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Synthesis of CO2-based polycarbonate-g-polystyrene copolymers via NMRP.
Chemical Communications ( IF 4.3 ) Pub Date : 2020-07-10 , DOI: 10.1039/d0cc03665j
Pengfei Song ₁ , Rong Guo ₁ , Wei Ma ₁ , Liyan Wang ₁ , Fangfang Ma ₁ , Rongmin Wang ₁

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The construction of a graft copolymer is an effective method to modify the properties of CO₂-based aliphatic polycarbonate (CO₂-APC) for meeting specific needs. Herein, we describe a facile route for the synthesis of CO₂-based APC-graft-polystyrene copolymers using a “grafting from” strategy. Firstly, the copolymerization of CO₂ and epichlorohydrin (ECH) was performed for the synthesis of the APC of poly(CO₂/ECH). Then, a functionalized-APC can be prepared by the substitution reaction of poly(CO₂/ECH) and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) that can serve as a precursor for the graft compolymer of P(CO₂/ECH)-g-polystyrene via nitroxide-mediated radical polymerization (NMRP). The intermediates at each step and final graft copolymers were characterized using ¹H NMR, GPC, DSC and TG analyses.

中文翻译：

通过NMRP合成基于CO2的聚碳酸酯-g-聚苯乙烯共聚物。

接枝共聚物的构造是一种改性CO ₂基脂族聚碳酸酯（CO ₂ -APC）的性能以满足特定需求的有效方法。本文中，我们描述了一种使用“接枝”策略合成基于CO ₂的APC-接枝-聚苯乙烯共聚物的简便方法。首先，进行了CO ₂和表氯醇（ECH）的共聚，以合成聚（CO ₂ / ECH）的APC 。然后，可以通过聚（CO ₂ / ECH）和2,2,6,6-四甲基哌啶-1-氧基（TEMPO）的取代反应制备官能化的APC ，该化合物可以用作P的接枝共聚物（CO ₂ / ECH）-g-通过氮氧化物介导的自由基聚合（NMRP）的聚苯乙烯。使用¹ H NMR，GPC，DSC和TG分析表征每个步骤的中间体和最终接枝共聚物。

更新日期：2020-08-19

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